CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets [Abstract]
Property and equipment, net of accumulated depreciation	$ 3,147,749	$ 3,149,095
Trade receivables, less allowance	109,973	67,923
Prepaid expenses and other assets	90,070	78,240
Intangible assets	237,175	246,770
Liabilities [Abstract]
Debt and finance lease obligations	2,485,179	2,441,895
Accounts payable and accrued liabilities	285,296	274,890
Accounts Receivable, Net [Abstract]
Allowance for doubtful accounts receivable	$ 739	$ 763
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	51,434,000	51,336,000
Common stock, shares outstanding (in shares)	51,434,000	51,336,000
Treasury Stock, Shares [Abstract]
Treasury stock, shares (in shares)	599,000	592,000
Variable Interest Entity [Member]
Assets [Abstract]
Property and equipment, net of accumulated depreciation	$ 1,010,730	$ 1,018,499
Trade receivables, less allowance	25,431	2,019
Prepaid expenses and other assets	29,406	20,419
Intangible assets	232,367	241,973
Liabilities [Abstract]
Debt and finance lease obligations	526,449	494,578
Accounts payable and accrued liabilities	$ 69,696	$ 70,215